I'm trying to find out the number of black police killed by white police in NYC, as well as the number of white police killed by black police (if any.) If possible, also the number where the officer was considered a suspect vs caught in crossfire.
There's a comment here that provides some clues: http://blogs.villagevoice.com/runninscared/archives/2009/05/police_officers.php
But I want to find an authoritative source I can cite.
Thanks!